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| //===- NativeTypePointer.cpp - info about pointer type ----------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/PDB/Native/NativeTypePointer.h"
#include "llvm/DebugInfo/CodeView/TypeDeserializer.h"
#include <cassert>
using namespace llvm;
using namespace llvm::codeview;
using namespace llvm::pdb;
NativeTypePointer::NativeTypePointer(NativeSession &Session, SymIndexId Id,
codeview::TypeIndex TI)
: NativeRawSymbol(Session, PDB_SymType::PointerType, Id), TI(TI) {
assert(TI.isSimple());
assert(TI.getSimpleMode() != SimpleTypeMode::Direct);
}
NativeTypePointer::NativeTypePointer(NativeSession &Session, SymIndexId Id,
codeview::TypeIndex TI,
codeview::PointerRecord Record)
: NativeRawSymbol(Session, PDB_SymType::PointerType, Id), TI(TI),
Record(std::move(Record)) {}
NativeTypePointer::~NativeTypePointer() {}
void NativeTypePointer::dump(raw_ostream &OS, int Indent,
PdbSymbolIdField ShowIdFields,
PdbSymbolIdField RecurseIdFields) const {
NativeRawSymbol::dump(OS, Indent, ShowIdFields, RecurseIdFields);
if (isMemberPointer()) {
dumpSymbolIdField(OS, "classParentId", getClassParentId(), Indent, Session,
PdbSymbolIdField::ClassParent, ShowIdFields,
RecurseIdFields);
}
dumpSymbolIdField(OS, "lexicalParentId", 0, Indent, Session,
PdbSymbolIdField::LexicalParent, ShowIdFields,
RecurseIdFields);
dumpSymbolIdField(OS, "typeId", getTypeId(), Indent, Session,
PdbSymbolIdField::Type, ShowIdFields, RecurseIdFields);
dumpSymbolField(OS, "length", getLength(), Indent);
dumpSymbolField(OS, "constType", isConstType(), Indent);
dumpSymbolField(OS, "isPointerToDataMember", isPointerToDataMember(), Indent);
dumpSymbolField(OS, "isPointerToMemberFunction", isPointerToMemberFunction(),
Indent);
dumpSymbolField(OS, "RValueReference", isRValueReference(), Indent);
dumpSymbolField(OS, "reference", isReference(), Indent);
dumpSymbolField(OS, "restrictedType", isRestrictedType(), Indent);
if (isMemberPointer()) {
if (isSingleInheritance())
dumpSymbolField(OS, "isSingleInheritance", 1, Indent);
else if (isMultipleInheritance())
dumpSymbolField(OS, "isMultipleInheritance", 1, Indent);
else if (isVirtualInheritance())
dumpSymbolField(OS, "isVirtualInheritance", 1, Indent);
}
dumpSymbolField(OS, "unalignedType", isUnalignedType(), Indent);
dumpSymbolField(OS, "volatileType", isVolatileType(), Indent);
}
SymIndexId NativeTypePointer::getClassParentId() const {
if (!isMemberPointer())
return 0;
assert(Record);
const MemberPointerInfo &MPI = Record->getMemberInfo();
return Session.getSymbolCache().findSymbolByTypeIndex(MPI.ContainingType);
}
uint64_t NativeTypePointer::getLength() const {
if (Record)
return Record->getSize();
switch (TI.getSimpleMode()) {
case SimpleTypeMode::NearPointer:
case SimpleTypeMode::FarPointer:
case SimpleTypeMode::HugePointer:
return 2;
case SimpleTypeMode::NearPointer32:
case SimpleTypeMode::FarPointer32:
return 4;
case SimpleTypeMode::NearPointer64:
return 8;
case SimpleTypeMode::NearPointer128:
return 16;
default:
assert(false && "invalid simple type mode!");
}
return 0;
}
SymIndexId NativeTypePointer::getTypeId() const {
// This is the pointee SymIndexId.
TypeIndex Referent = Record ? Record->ReferentType : TI.makeDirect();
return Session.getSymbolCache().findSymbolByTypeIndex(Referent);
}
bool NativeTypePointer::isReference() const {
if (!Record)
return false;
return Record->getMode() == PointerMode::LValueReference;
}
bool NativeTypePointer::isRValueReference() const {
if (!Record)
return false;
return Record->getMode() == PointerMode::RValueReference;
}
bool NativeTypePointer::isPointerToDataMember() const {
if (!Record)
return false;
return Record->getMode() == PointerMode::PointerToDataMember;
}
bool NativeTypePointer::isPointerToMemberFunction() const {
if (!Record)
return false;
return Record->getMode() == PointerMode::PointerToMemberFunction;
}
bool NativeTypePointer::isConstType() const {
if (!Record)
return false;
return (Record->getOptions() & PointerOptions::Const) != PointerOptions::None;
}
bool NativeTypePointer::isRestrictedType() const {
if (!Record)
return false;
return (Record->getOptions() & PointerOptions::Restrict) !=
PointerOptions::None;
}
bool NativeTypePointer::isVolatileType() const {
if (!Record)
return false;
return (Record->getOptions() & PointerOptions::Volatile) !=
PointerOptions::None;
}
bool NativeTypePointer::isUnalignedType() const {
if (!Record)
return false;
return (Record->getOptions() & PointerOptions::Unaligned) !=
PointerOptions::None;
}
static inline bool isInheritanceKind(const MemberPointerInfo &MPI,
PointerToMemberRepresentation P1,
PointerToMemberRepresentation P2) {
return (MPI.getRepresentation() == P1 || MPI.getRepresentation() == P2);
}
bool NativeTypePointer::isSingleInheritance() const {
if (!isMemberPointer())
return false;
return isInheritanceKind(
Record->getMemberInfo(),
PointerToMemberRepresentation::SingleInheritanceData,
PointerToMemberRepresentation::SingleInheritanceFunction);
}
bool NativeTypePointer::isMultipleInheritance() const {
if (!isMemberPointer())
return false;
return isInheritanceKind(
Record->getMemberInfo(),
PointerToMemberRepresentation::MultipleInheritanceData,
PointerToMemberRepresentation::MultipleInheritanceFunction);
}
bool NativeTypePointer::isVirtualInheritance() const {
if (!isMemberPointer())
return false;
return isInheritanceKind(
Record->getMemberInfo(),
PointerToMemberRepresentation::VirtualInheritanceData,
PointerToMemberRepresentation::VirtualInheritanceFunction);
}
bool NativeTypePointer::isMemberPointer() const {
return isPointerToDataMember() || isPointerToMemberFunction();
}
|